*{
  box-sizing: border-box;
}

body{
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    background-image: url(images/library-1866844_1280.jpg);
    padding: 20px;
}


h1, h2, h3, p {
    text-align: center;
    color: white;
    margin: 10px;
}

h1{
    font-size: 40px;
    margin-top: 15px;
    padding: 10px;
}

h2 {
    font-size: 30px;
    padding: 10px;
}

p {
    font-size: 18px;
}

.menu {
    width: 80%;
    background-color: black;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 5px;
}

hr {
height: 3px;
background-color: #123524;
border-color: #123524;
}

/* footer */

footer {
    font-size: 16px;
    padding: 10px;
}

a{
    color: white;
}

a:visited{
    color: #123524;
}

button {
    font-size: 20px;
    background-color: #123524;
    color: white;
    cursor: pointer;
    border-radius: 8px;
    padding: 16px;
    margin: 15px;
}

.browsecollections {
    display: flex;
    justify-content: space-evenly;
    align-items: center;
    height: 50px;
}

.sidenav {
  height: auto;
  width: 160px;
  position: fixed; 
  z-index: 1;
  top: 0;
  left: 0;
  background-color: #111;
  overflow-x: hidden;
  padding-top: 20px;
}

.sidenav a {
  padding: 6px 8px 6px 16px;
  text-decoration: none;
  font-size: 25px;
  color: #818181;
  display: block;
}

.sidenav :hover {
   background-color: white;
   color: black;
}

.art-hub{
  display: flex;
  justify-content: space-evenly;
  align-items: center;
  flex-wrap: wrap;
  align-content: space-around;
  padding: 10px;
}


.praise-button {
    font-size: 20px;
    background-color: #123524;
    color: white;
    cursor: pointer;
    border-radius: 8px;
    padding: 16px;
}

.summon {
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: black;
    width: 50%;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 5px;
}